<?php
/**
 * Copyright 2011 MaGdev
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *    * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *    * The names of the authors may not be used to endorse or promote products
 *      derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @package      Mashape API-Documentor
 * @author       Marco Graetsch <info@magdev.de>
 * @copyright    2011 Marco Graetsch.development
 * @license      http://opensource.org/licenses/bsd-license.php New BSD License
 * @link         https://code.google.com/p/apidocumentor/
 */


/**
 * Mashape API-Documentor annotation reader
 *
 * @author magdev
 */
class Mashdoc_Metadata_Annotation extends Mashdoc_Metadata_Abstract implements Mashdoc_Metadata_Interface
{
	/**
	 * Get the main docblock for the API
	 *
	 * @return array
	 */
	public function getTags()
	{
		if (is_null($this->_tags)) {
			$comment = $this->_xpath->query('/api/preceding-sibling::comment()')->item(0);
			if ($comment instanceof DOMComment) {
				$tags = $this->_getAnnotations($comment);
				if (is_array($tags)) {
					foreach ($tags as $tag => $value) {
						$this->_setTag($tag, $value);
					}
				}
			}
		}
		return $this->_tags;
	}
	
	
	
	/**
	 * Read annotations from comment
	 *
	 * @param DOMComment $comment
	 * @return array
	 */
	protected function _getAnnotations(DOMComment $comment)
	{
		$text = trim($comment->nodeValue);
		$arr = array();
		if (preg_match_all('/\s*@([\w]+)[\s]+([^\n]+)/is', $text, $results)) {
			foreach ($results[1] as $i => $val) {
				$arr[trim($val)] = trim($results[2][$i]);
			}
		}
		return $arr;
	}
	
}
?>